What utilities could you use to force the NIC on your Linux server to use full-duplex transmission?

What is a significant advantage to using an SFP interface on a router rather than an on-board NIC?

You and your friend decide to set up Fast Ethernet networks in your respective houses to connect a half-dozen computers at each location. Both of you will connect your networks to high-speed Internet connections. As the connectivity device for end nodes, you purchase a router, whereas your friend uses an old, but functional, 12-port hub he found at a garage sale. What will your network do that your friend's network won't do?

You are a network technician working on a 100Base-T network. A coworker has been having trouble logging on to the server and asks whether you can quickly tell her if her workstation's NIC is operating properly. You do not have the NIC's utility on hand, but you look at the back of her workstation and learn that although the NIC is properly installed and connected to the network, something's wrong with it. What might you have seen that causes you to come to this conclusion?

What distinguishes switches from repeating devices, such as hubs?

In cut-through switching, which frame field does the switch never read?

What potential problem does STP (Spanning Tree Protocol) address?

You are asked to configure a backbone switch that connects servers supplying oceanic and atmospheric data to mariners and pilots around the world. Your network's traffic load is very high at all times, day and night. What type of switching do you configure the switch to use?

Suppose your company's network contains two separate VLANs. Computer A is on the Customer Service VLAN and computer B is on the Warehouse VLAN. Besides a Layer 2 switch, what device is required for computer A and computer B to exchange data?